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PCA9485 - switched capacitor direct charger

General Description

The PCA9485 is a highly integrated switched-capacitor converter with an embedded OVPFET and dual external FET controls, targeted to provide the quadruple output current for the fast charging applications with a 1-cell battery.

Key Features

  • all the functions with an I2C interface, with up to 1 MHz speed. NXP Semiconductors PCA9485 13 A 4:1, 1:4, 2:1, 1:2, and 1:1 mode switched capacitor direct charger 2 Features.
  • Dual-phase switched-capacitor to optimize efficiency.
  • Integrated 4:1, 2:1 switched capacitor charger for single cell battery including 1:1 bypass.
  • Reverse operation mode, such as 1:4, 1:2 and reverse bypass from VOUT to VIN.
  • 96.8 % efficiency at VOUT = 4.5 V and IVOUT = 8 A.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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PCA9485 13 A 4:1, 1:4, 2:1, 1:2, and 1:1 mode switched capacitor direct charger Rev. 1.1 — 6 August 2024 Objective short data sheet 1 General description The PCA9485 is a highly integrated switched-capacitor converter with an embedded OVPFET and dual external FET controls, targeted to provide the quadruple output current for the fast charging applications with a 1-cell battery. The device works in 4:1 switching operation with an extremely high efficiency (around 96.8 %, at VOUT = 4.5 V, IOUT = 8 A), in 1:4, 2:1 and 1:2 switching operation or in 1:1 mode with forward and reverse direction. Absolute maximum voltage for each VUSB, VWPC, VIN, VOUT, and VUSB/VWPC input is designed to support up to 35 V.